[GreenKeys] Evapo-Rust, and similar products

[Dave Hunter]

Hi All:

Has anyone any experience using Evapo-Rust from Rust Stop, 
or similar produsts from other maufacturers?

The following from their site describes the process:

"EVAPO-RUST works through selective chelation. This is a 
process in which a large synthetic molecule forms a bond 
with metals and holds them in solution. Most chelating 
agents bind many different metals. The active ingredient in 
EVAPO-RUST bonds to iron exclusively. It can remove iron 
from iron oxide but is too weak to remove iron from steel 
where the iron is held much more strongly. Once the 
chelating agent has removed the iron, a sulfur bearing 
organic molecule pulls the iron away from the chelator and 
forms a ferric sulfate complex which remains water soluble. 
This frees the chelating agent to remove more iron from 
rust."

http://www.evaporust.ca/

Another similar product is Ultra-One: 
http://safestrustremover.com/

This also works in a similar fashion.

My reason for enquiring, is that my latest project is 
restoring a Fairchild Teletypesetter Standard Perforator. 
Most of the machine will be a relatively easy restoration. 
BUT - the actual punch unit is severely rusted, and I would 
like to save as much of it as possible, as my chances of 
finding another 6 level 7/8 inch paper tape punch to fit it 
are small to impossible.

If this stuff does work, it might be the saviour for this 
project, and probably many others. To use it, you soak the 
item in it for two hours, rinse it off, then re-soak for 
more time. Instructions on the Evapo-Rust site above. 

I would be interested in hearing if anyone has any 
experience with this or a similar product. If it works, I 
will get some, and give it a try and report back to the 
list.

Dave


Amateur Radio Station VY2AC on Prince Edward Island
Website: http://www.qsl.net/vy2ac 
E-mail: vy2ac at qsl.net